Science: Canned Goods

Against the next war and possible gas attacks, Britain is manufacturing
hundreds of thousands of gas masks for the use of her civilian
population. One problem, however, has remained: how to keep the masks
(particularly their rubber parts) from deteriorating to the point where
they may become useless. Last week British chemists thought they had
solved it. Their idea: to put up gas masks in canslarge tins filled
with inactive nitrogen so as to exclude the oxygen of the air which
ordinarily affects rubber. Hereafter Britons who want to play safe will
keep...